Mobile OSes went through a Cambrian explosion and then there was an inevitable mass extinction. The two survivors - Android and iOS - date back to 2007 and they completely dominate the field. Android is on 9 in 10 phones while iOS lives in concentrated pockets around the world. Probably the last big OS to fall was Windows. We look back to the PocketPC days and Windows Mobile. Back then, the UI tried to imitate the mouse and keyboard-driven desktop Windows and let's just say that it wasn't great. Then there was the Windows Phone whose UI was inspired by the Zune players. This time...
Source: https://www.gsmarena.com/counterclockwise_windows_on_phones_evolves_but_cant_fight_off_android-news-31430.php
